Thanks for the link... I think I have outline the basic upgrades to the MG16

1.- Bearings: [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD121&P=M]DuraTrax Bearing 5x11mm[/link]
2.- I like to change the tires for this ones [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXEXA3&P=M]HPI Yokohama Geolandar M/T Tire S[/link] and this rims look really cool [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXWSN2&P=M]RPM Revolver 2.2"[/link] [8D]
3.- Add a fuel filter, change the air filter... maybe Front and rear aluminium shock towers from [link=http://www.cenracingdirect.com/index.asp?PageAction=VIEWPROD&ProdID=3140]CEN Racing Direct[/link]. Aluminium shocks and other small parts can be replaced one at the time later.

And the exhaust sistem will come at the end of the list... as far as I see its more a situation of experiment and redesign on the MG than a upgrade already created for the unit so I will worrie about that later.